$(document).ready(function(){
    // Set the first menu element to be the current element:
    $('#menu-items > li > a:first').addClass('current');
    // Set loading image:
    $('#partner_info_container').html('<img class="centered" src="' + loadingImg + '" />');
    // Load initial contents:
    $('#partner_info_container').load(serviceUrl, { 'p' : partner, 's' : 'first' } );
    
    // Set event listeners for all <a> tags under "menu-items":
    $('#menu-items > li > a').click(function(e) {
       // Prevent link's default action:
       e.preventDefault();
       // Find out link's hypertext reference:
       var section = $(this).attr('href');
       // Clear current element(s):
       $('#menu-items > li > a').removeClass('current');
       // Set this one as current:
       $(this).addClass('current');
       // Show load animation:
       $('#partner_info_container').html('<img class="centered" src="' + loadingImg + '" />');
       // Perform AJAX load call:
       $('#partner_info_container').load(serviceUrl, { 'p' : partner, 's' : section } );
    });
});